Bear in mind that Doyble Density and High Density drives use different voltages in the read/write heads. Actually (if my memory doesn't fail me) HD disks use a lower voltage than used in the DD disks.

This may lead in various problems in the future, if you cover the hole that permits the drive to recognise HD or DD, it may use the wrong voltage while writing or formating, thus rendering the disk unusable in other or even in the same drive.

Check if you already did that, (feeding an HD disk in an DD drive or vice versa) and theroblems ytou are experiencing are what I described above.

Better try to find a new or used disk drive of the same type and check if the wiring is the same or it is proprietary.

Since you already took the trouble to open up the keyb and install a different drive, this would be no major problem.


[This message has been edited by trident (edited 12-18-2009).]